#1 conterminous s. [contiguous] connecting without a break; within a common boundary; "the 48 conterminous states"; "the contiguous 48 states". wn
#2 conterminous s. [adjacent, contiguous, neighboring] having a common boundary or edge; abutting; touching; "Rhode Island has two bordering states; Massachusetts and Conncecticut"; "the side of Germany conterminous with France"; "Utah and the contiguous state of Idaho"; "neighboring cities". wn
#3 conterminous s. [coextensive, coterminous] being of equal extent or scope or duration. wn
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